Toner compositions with hydrogenated components
CA 2125305 C · Owner: Mosher, Ralph A. · Inventors: Fuller, Timothy J.; Mosher, Ralph A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A toner composition comprised of hydrogenated resin particles and pigment particles, preferably comprised of ultra low melt resin polymers which in embodiments of the present invention possess a glass transition temperature of from about 20 to about 75°C and preferably from about, 33 to about 60°C as determined by differential scanning calorimetry and, wherein the toner melts at from about 220 to about 300°F.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 7, 1994 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.